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Added a unit test.

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Rossen Hristov
2015-11-11 10:34:36 +02:00
parent ba30024e4e
commit 1fe2a8dea7
1 changed files with 30 additions and 0 deletions
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30
apps/tests/ui/bindable-tests.ts
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@@ -879,3 +879,33 @@ export function test_NullSourcePropertyShouldNotCrash() {
TKUnit.assertEqual(target.get("targetProp"), convFunc(expectedValue)); TKUnit.assertEqual(target.get("targetProp"), convFunc(expectedValue));
} }
export var test_BindingContextOfAChildElementIsNotOverwrittenBySettingTheBindingContextOfPage = function (done) {
var testFinished = false;
var pageFactory = function () {
var page = new pageModule.Page();
var child = new stackLayoutModule.StackLayout();
page.content = child;
var childModel;
page.on(pageModule.Page.navigatingToEvent, (args) => {
childModel = new observable.Observable();
child.bindingContext = childModel;
TKUnit.assertEqual(child.bindingContext, childModel);
page.off(pageModule.Page.navigatingToEvent);
});
page.on(pageModule.Page.loadedEvent, (args) => {
TKUnit.assertEqual(child.bindingContext, childModel);
(<pageModule.Page>args.object).bindingContext = new observable.Observable();
TKUnit.assertEqual(child.bindingContext, childModel);
page.off(pageModule.Page.loadedEvent);
testFinished = true;
});
return page;
};
helper.navigate(pageFactory);
TKUnit.waitUntilReady(() => { return testFinished });
helper.goBack();
done(null);
}